def tr.xts_dout

bend-osdev-cipher-modes@0.1.0.0 · PROOF.bend:1123

import Base
import bend-osdev-cipher-modes@0.1.0.0/cipher_modes.bend as M
import bend-osdev-cipher-modes@0.1.0.0/xts.bend as T

1123def tr.xts_dout(~K: Data, ~dec: K -> M.CmBlock -> M.CmBlock, +k: K, +t: M.CmBlock, +init: List<&2, M.CmBlock>, +last: M.CmBlock, +tail: List<&2, U32>) -> {T.xts.dout(~K, ~dec, k, t, init, last, tail) == T.xts.dout.fast(~K, ~dec, k, t, init, last, tail) : List<&2, U32>}:
1124  %tr.len_eq(init) : {T.xts.dout(~K, ~dec, k, t, init, last, tail) == M.cm.join_onto.fast(T.xts.dec.fast(~K, ~dec, k, init, t), T.xts.dsteal(~K, ~dec, k, last, tail, T.xts.alpha_n(_, t))) : List<&2, U32>}
1125  %tr.xts_dec_eq(~K, ~dec, k, init, t) : {T.xts.dout(~K, ~dec, k, t, init, last, tail) == M.cm.join_onto.fast(_, T.xts.dsteal(~K, ~dec, k, last, tail, T.xts.alpha_n(List.length(&2, M.CmBlock, init), t))) : List<&2, U32>}
1126  %tr.join_eq(T.xts.dec(~K, ~dec, k, init, t), T.xts.dsteal(~K, ~dec, k, last, tail, T.xts.alpha_n(List.length(&2, M.CmBlock, init), t))) : {T.xts.dout(~K, ~dec, k, t, init, last, tail) == _ : List<&2, U32>}
1127  {==}